Medication Infusion Pumps. Kamen's first major innovation was the AutoSyringe, a wearable device that delivered precise doses of medication to diabetics and other patients with a variety of medical conditions. This gave patients greater freedom and control over their disease, dramatically improving their quality of life while reducing complications and painful daily injections. Among Kamen's other inventions are a portable peritoneal dialysis machine and the IBOT, a sophisticated wheelchair capable of climbing stairs.